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155114540 = 22575989211
BaseRepresentation
bin10010011111011…
…01110000101100
3101210212122010222
421033231300230
5304202131130
623220350512
73562310660
oct1117556054
9353778128
10155114540
117a615939
1243b45438
132619cb69
141685a8a0
15d93ece5
hex93edc2c

155114540 has 96 divisors (see below), whose sum is σ = 384652800. Its totient is φ = 51448320.

The previous prime is 155114539. The next prime is 155114567. The reversal of 155114540 is 45411551.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 735035 + ... + 735245.

It is an arithmetic number, because the mean of its divisors is an integer number (4006800).

Almost surely, 2155114540 is an apocalyptic number.

155114540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155114540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192326400).

155114540 is an abundant number, since it is smaller than the sum of its proper divisors (229538260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155114540 is a wasteful number, since it uses less digits than its factorization.

155114540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 155114540 is about 12454.4987855795. The cubic root of 155114540 is about 537.3008196552.

The spelling of 155114540 in words is "one hundred fifty-five million, one hundred fourteen thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 59 70 89 118 140 178 211 236 295 356 413 422 445 590 623 826 844 890 1055 1180 1246 1477 1652 1780 2065 2110 2492 2954 3115 4130 4220 5251 5908 6230 7385 8260 10502 12449 12460 14770 18779 21004 24898 26255 29540 36757 37558 49796 52510 62245 73514 75116 87143 93895 105020 124490 131453 147028 174286 183785 187790 248980 262906 348572 367570 375580 435715 525812 657265 735140 871430 1107961 1314530 1742860 2215922 2629060 4431844 5539805 7755727 11079610 15511454 22159220 31022908 38778635 77557270 155114540